TY - BOOK AU - Chung Fegan Sophia AU - Forouzan Behrouz A TI - Data Communications and Networking / Fourth Edition SN - 71254420 PY - 2007/// PB - Mc Graw Hill Higher Education N2 - Preface, Overview, Physical Layer and Media, Data Link Layer, Network Layer, Transport Layer, Application Layer, Security, Acronyms, Glossary, References, Index ER -